/**
 * @file hello.cpp
 * @author housirui
 * @version 1.0
 * @date 2022-11-13
 * 
 * @par 修改日志:
 * <table>
 * <tr><th>Date       <th>Version <th>Author       <th>Description
 * <tr><td>2022-11-13 <td>1.0     <td>housirui     <td>内容
 * </table>
 */
#include <iostream>
using namespace std;

/**
 * @brief print "Hello World!"
 * @return int 
 */
int main()
{
    cout << "Hello World!" << endl;
    return 0;
}